Means for igniting gas expelled from foundry molds



Sept. 8, 1931. F. E. MccAB; 1,822,229

MEANS FOR IGNITING GAS EXPELLED FROM FOUNDRY MOLDS Original Filed Sept. 19, 1925 Patented Sept. 8, 1931 UNITED STATES PATENT; OFFICE FRANK E. MCUABE, F CLEVELAND, OHIO, ASSZGNOR TO THE GRABLER MANUFACTUR- INC-r COMPANY, OF CLEVELAND, 01-110, A CORPORATION OF OHIO MEANS FOR IGNITTNG GAS EXPELLED FROM FOUNDRY MOLDS Original application filed September 19, 1525, Serial No. 57,333. Divided and this application filed March 25, 1927. Serial No. 178,250.

As is Well known to those familiar with foundry work, when molten metal is poured into sand molds a gas is created which escapes from the molds, and not only is this gas obnoxious to the workmen but frequently explodes causing jar and consequential injury to the molds.

It is the purpose of my invention to provide means, such as a gas jet, for igniting the gas as it is expelled from the molds thereby to protect the workmen from its annoying presence and to prevent its accumulation in such quantities as would cause damage to the molds it an explosion should occur.

The invention is illustrated in my former application Serial No. 57,333, filed September 19, 1925, now Patent No. 1,734,174:, granted November 5, 1929, of which this application is a division, and While I wish it to be understood that the invention is not limited to such an arrangement as that disclosed in my former application, I have borrowed from said application the embodiment disclosed therein as one example of how the invention may be put into practice.

In the accompanying drawing, the figure is more or less diagrammatic illustration of the invention, the same showing a stack of molds that have just been poured and that are supported in operative relation to a gas burner.

As will be seen by reference to the aforesaid application, the same has to do with a molding system involving mold forming, mold pouring, and shake-out stations past which mold carriers are adapted to travel on an overhead track. The present illustration is in the nature of a vertical section through the mold pouring station. 7 A pouring plat form is shown at 1, and suspended thereabove from a rail 2 is a portable pouring ladle 3. The ladle is provided with a handle 4 by means of which it may be manipulated. A stack of molds 5 is adapted to be delivered alongside the platform 1 and in receiving relation to the ladle 3 by means of a moldcarrier designated generally by the numeral 7. The carrier is suspended from a trolley 8 which travels upon an overhead track 9 in the nature of an I beam. To steady the carrier during the pouring operation its lower end 1s adapted to contact with a stop 10 that is rigidly connected to the floor 11. Preparatory to pouring the molds, a weight 12 is placed upon the uppermost mold of the stack in accordance with common practice, the weight having a hole that registers with the sprue of the mold in the usual and Well known manner.

0 A gas burner 15 is supported by the plat Iorm structure in juxtaposition to the lower molds of the stack, and immediately after the molds are poured the gas generated therein escapes from between the engaging edges of the superposed flasks and is immediately ignited by the flame of the gas burner and is consumed without injurious effects to either the workmen or the molds.

Having thus described my invention, what I claim is In a foundry conveyor system, a pouring station, a plurality of superposed molds at said pouring station, said molds adapted to permit the escape of combustible gases formed therein during and after pouring, fixed gas igniting means adjacent the lowermost of said superposed molds for burning combustible gases escaping therefrom during and after pouring and, by igniting gases escaping from the lowermost mold, for igniting gases escaping from the molds above it.

In testimony whereof, I hereunto aflix my signature.

FRANK E. MoCABE. 

